Running-gear connection for road-maintaining machines



Jan. 14, 1930. J ROYER I 1,743,'868

RUNNING GEAR CONNECTION FOR ROD MAINTAINING MACHINES Filed May 14, 1928Jesse R.Kyr,

Patented Jan. 14, 1930 UNITED STATES PATENT OFFICE.

JESSE E. ROYER, OF JANESVILLE, IOWA, .ASSIGNOR TO ROYER MANUFACTURINGCOMPANY, OF JANESVILLE, IOWA RUNNING-GEAR CONNECTION ronROAD-MAINTAINING MACHINES Application filed May 1 4, 1928. Serial No. 2772640. i

My invention relates to improvements in running gear connections forVehicles, and the object of my improvement is to supply for Vehicles andparticularly for. road maintaining machines such as are employed in thegrading, maintenance or building of roads or otherwise, running gearincluding means for permitting lateral tilting of an aXle to allowtracking of the wheels thereon upon defective ways without tiltinglyshifting the frame structure which is supported on such running gear ora grading blade set at a desired inclination to the general surface ofthe way.

This object I have successfully accomplished by the means which arehereinafter described and claimed, and which are illustrated in theaccompanying drawings, in`

which Fig. 1 is a front elevation, in partial cross section, of myimprovement as mounted between the front axle and the superposed framestructure of a Vehicle of the road grader or maintainer type asconventionally represented with parts removed. Fig. 2 is a 2 perspectiveView of the intermediate mountings with parts removed and other partsrelatively spread apart.

It is to be understood that minor modifications of said mountings toefiect the object sought may be made and yet be included wthin the scopeof the appended claims.

In the conventional showing of a road maintaining machine of said Fig.1, the numeral 1 denotes the frame structure hav- 3 ing supportedthereon in the rear depending hangers 4 which in turn have laterallyspaced hangers 5 carrying an inclined and transverse blade 7 of theusual type for working road and other ways.

The numeral 8 denotes a downwardly con- Vergent pair of rigid hangersSecured to the cylindrical part of the block 19 after removal i of alower hearing element 12 to be described. The numeral 21 denotes aking-pin seated loosely in a cylindrical Vertically disposed centralhearing opening in the block 19 and retained at the top therein by asplit-pin 20. The numeral 9 denotes a pair of upwardly convergent arms'united integrally at the top by a block 12. The lower outer parts 10 ofthese arms are cylindrically grooved in their lower faces to fit overthe cylindrical aXle 3 which has the front carrying wheels 2 mounted onits ends in the usual manner. U-bolts '11 fasten the terminal'parts 10upon said axle. The block 12 has a conVeX top 16, and an aperturedwear-plate 17 is mounted on the king-pin2l between the block 19 and thecon- VeX top 16 of the lower block 12, so that the convex top 16 maycontactingly rock relative v to the wear-plate. r

The block 12 has a vertically disposed central aperture 13, which iswidened laterally from top to bottom only laterally, the front and rearinnerfaces of the wall of the aperture being flat and parallel. flatlower face of the block 12 is an apertured supporting disk 15 retainedby a split-pin 14: in the king-pin, it being seen that both the block 12and disk 15 are mounted on the kingpin.

Fig. 1 discloses-that when the wheels 2 pass from a level surface of theway traversed to subside at one side into a depression, one wheel 2 willdrop which tilts the aXle 3 sidewise,'the downwardly widening apertureor seat 13 in the block 12 permitting the block to rock vertically andlaterally only to compensate for this downward displacement of the wheel2, but without displacement or sidewise tilting of the frame structure 1or of its blade 7, so that the latter can work during the forwardprogress of the machine without constant irregularities in its action asmay occur when no provision is made as shown for the 'preveiitionthereof.

This invention may be used on other Vehicles as desired, for likepurposes.

It should also be noted that the forward draft is upon the upper block19 to the frame 1 and blade 7 and not directly upon the king- Beneaththe pin 21, which eliminates any possibility of improper alinement onthe front axle assembly.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is:

1. A running gear connection for a road maintaining machine, comprisingin combination with the frame of the machine, a front axle thereunderand wheels nounted on the aXIe, of a vertically apertured medialbearing-block mounted rigidly upon said axle whose aperture is wideneddownwardly lateraHy and having evenly spaced fron-t and rear walls, thetop of said hearing-block being convex, a frame hearing-block rigidlymounted on the frane and apertured n alinement with the said aperture ofthe aXle hearingblock, a king-pn traversing said alined apertures,anapertured wear plate on said kingpin and supported on the convexity ofthe axle hearing-block, an apertured wear plate mounted on the king-pinbelow the aXIe bearing-block, means for releasably securing the king-pinin said positions, and a draft-connection rockingiy mounted upon saidframe hearing-block.

2. A running gear connection for a road maintaining machine, comprisingin combination with the frame of the machine, a front axle thereunderand wheels mounted on the axle, of downwardiy convergent rigid arms onsaid frame terminating with a vertically apertured cylindricalhearing-block, a draftconnection having an annular termination mountedrockingly upon said cylindrical block, upwardly converging arms rigidlymounted upon saidaxie terminating With a vertically aperturedhearing-block alined with said frame hearing-block, the aperture in theaxle hearing-block being widened transversely, a king-pin -looselytraversing the apertures in said bearing-blocks, a wearplate mounted ontheking-pin between said blocks and supporting said draft-connectionannular terminaton, a removable .wear-plate' mounted on the king-pinbelow the axle bearing-block, and means for` releasably retaining saidking-pin in saidibearing-blocks.

In testimony whereof I affix my signature.

JESSE R. ROYER.

